{"product_id":"hot-cams-stage-2-racing-camshaft-4090-2e-for-2003-2009-yamaha-yz450f","title":"Hot Cams Stage 2 Racing Camshaft 4090-2E for 2003-2009 Yamaha YZ450F","description":"WE RACE ON THE TRACK, NOT THE DYNO! Most camshaft designs are developed only on a dyno. Good camshaft designs not only increase power, they also improve throttle response. However, more power and better throttle response is a difficult design problem. Hotcams’ ITR technology solved this dilemma through highly engineered opening ramps not found on other cams. Using ITR technology, the critical ramp area is designed to give your engine a cleaner intake charge and a more efficient combustion cycle, making your engine more responsive at all throttle openings and giving the rider better feel and control of the engine! You will notice the difference!\n\u003cp\u003eThe Hot Cams Stage 2 Racing Camshaft, manufacturer part number 4090-2E and vendor part number 68-2141, is designed for high-performance 2003-2009 Yamaha YZ450F applications. Developed for riders who demand stronger engine response on the track, this camshaft is engineered to increase power while improving throttle feel and control across the usable throttle range.\u003c\/p\u003e\u003cp\u003eHot Cams Improved Throttle Response (ITR) technology uses carefully engineered opening ramps to promote a cleaner intake charge and a more efficient combustion cycle. The result is sharper response at all throttle openings, helping the rider manage power more effectively during acceleration and changing track conditions. This Stage 2 racing camshaft is intended for competition use and is not designed as a street-emissions component.\u003c\/p\u003e\u003cp\u003eInstallation is designed to be straightforward, with no core required. The camshaft is engineered for use with stock valve springs and rockers in most applications, while adjustable cam sprockets are supplied with some models where applicable. Always verify engine condition, timing requirements, and installation procedures before use. Fitment includes the 2003, 2004, 2005, 2006, 2007, 2008, and 2009 Yamaha YZ450F.\u003c\/p\u003e\u003cp\u003eThis Hot Cams camshaft is intended for racing applications. It is not legal for use in California on pollution-controlled vehicles; California use is limited to racing applications, with a waiver available. Professional installation and appropriate engine tuning are recommended to achieve proper performance and reliability.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigh-performance Stage 2 racing camshaft for Yamaha YZ450F models\u003c\/li\u003e\n\u003cli\u003eImproved Throttle Response (ITR) technology for sharper throttle control\u003c\/li\u003e\n\u003cli\u003eEngineered opening ramps support a cleaner intake charge and efficient combustion\u003c\/li\u003e\n\u003cli\u003eNo core required for installation\u003c\/li\u003e\n\u003cli\u003eDesigned to use stock valve springs and rockers in most applications\u003c\/li\u003e\n\u003cli\u003eAdjustable cam sprockets supplied with some models\u003c\/li\u003e\n\u003cli\u003eFits 2003-2009 Yamaha YZ450F\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 4090-2E\u003c\/li\u003e\n\u003cli\u003eVendor part number: 68-2141\u003c\/li\u003e\n\u003cli\u003eRace use only in California on pollution-controlled vehicles; waiver available\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2003 Yamaha YZ450F\u003cbr\u003e\n2004 Yamaha YZ450F\u003cbr\u003e\n2005 Yamaha YZ450F\u003cbr\u003e\n2006 Yamaha YZ450F\u003cbr\u003e\n2007 Yamaha YZ450F\u003cbr\u003e\n2008 Yamaha YZ450F\u003cbr\u003e\n2009 Yamaha YZ450F","brand":"HOT CAMS","offers":[{"title":"Default Title","offer_id":67555782066411,"sku":"68-2141","price":333.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/d617-5a5e5735ddaf5.jpg?v=1790743920","url":"https:\/\/ctracingservices.com\/products\/hot-cams-stage-2-racing-camshaft-4090-2e-for-2003-2009-yamaha-yz450f","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}